Francis Sontowski, age 68 of Wilmington, DE passed away on Saturday, April 15, 2017.

Frank was a graduate of Salesianum High School. He graduated from the University of Delaware with a Bachelors degree in Mechanical Engineering. He worked for various companies in the engineering field and in software development. He also taught mathematics at Salesianum High School.

Frank is survived by his brother, John (Linda) Sontowski of Naples FL and a sister, Kathleen (Sam) Oller of Wilmington, DE; nephews, Mark, David and John and a niece, Kathleen.

Services and burial will be private.

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